1. Composition: The photoelectric protector is generally composed of sensors, controllers, transmission lines, and installation brackets; The sensor consists of a light emitter and a light receiver.

2. Principle: The light emitting device generates encoded infrared beams, and the light receiving device receives corresponding beams; A rectangular protective area is created between the light emitting device and the light receiving device. When an opaque object enters this area, the corresponding beam is blocked, and the emitter or receiver generates a blocking signal to output to the controller (or directly outputs a PNP or NPN transistor signal); The controller ultimately converts the shading signal into a relay output signal.

3. Main domestic manufacturers: LNTECH, Keli, SFT, etc

Protection length: 0-10m, applicable to different machine tool countertops or protection areas.

Protection height: 40mm~1500mm, generally customizable.

Optical axis spacing: 10mm, 20mm, 40mm, 80mm

Detection accuracy: 14mm, 18mm, 20mm, 28mm, 48mm, 88mm

Response time:<20ms

Output method: relay output, dual NPN or PNP output

Status and fault indication: indicator light or digital tube

Protection level: IP65